US Bridges

Downing RD over Brushy Bayou

Fair

Brazoria County, Texas · 0.35 MI S of Henderson RD · Structure no. 120200E00335001

Built
1977
48 years old
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
5,100
2017 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Downing RD over Brushy Bayou is a prestressed concrete box beam or girders - multiple carrying Downing RD over Brushy Bayou in Brazoria County, Texas. It was built in 1977, so it is 48 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 5,100 vehicles a day, projected to reach 6,600 by 2037. The structure is 60 ft (18.3 m) long and 53 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesDowning RD
CrossesBrushy Bayou
Location0.35 MI S of Henderson RD
RouteCity Street 0
CountyBrazoria County
StateTexas
Coordinates29.18887, -95.41927
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span59 ft (18 m)
Deck width53 ft (16.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,100 (2017)
Projected traffic6,600 by 2037
Trucks0%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Downing RD over Brushy Bayou built?

It was built in 1977, making it 48 years old in 2025.

What condition is Downing RD over Brushy Bayou in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does Downing RD over Brushy Bayou carry?

About 5,100 vehicles per day (2017 count).

How long is Downing RD over Brushy Bayou?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (18 m) and a deck 53 ft wide.

Who owns Downing RD over Brushy Bayou?

It is owned by the Town or Township Highway Agency.